Aim: What is Tobacco and what are the health risks involved in smoking?
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Aim: What is Tobacco and what are the Aim: What is Tobacco and what are the health risks involved in smoking? health risks involved in smoking? Do Now: Which government Do Now: Which government department decides what drugs are department decides what drugs are legal and illegal? legal and illegal? Hand in HW Hand in HW Test next Friday 12/12: Nervous Test next Friday 12/12: Nervous System, Tobacco and Alcohol use System, Tobacco and Alcohol use
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Aim: What is Tobacco and what are the health risks involved in smoking?. Do Now: Which government department decides what drugs are legal and illegal? Hand in HW Test next Friday 12/12: Nervous System, Tobacco and Alcohol use. Tobacco. Crumbled Tobacco leaves Rolled Tobacco leaves - PowerPoint PPT Presentation
Transcript of Aim: What is Tobacco and what are the health risks involved in smoking?
Aim: What is Tobacco and what are the Aim: What is Tobacco and what are the
health risks involved in smoking?health risks involved in smoking?
Do Now: Which government Do Now: Which government department decides what drugs are department decides what drugs are legal and illegal?legal and illegal?
Hand in HWHand in HW
Test next Friday 12/12: Nervous Test next Friday 12/12: Nervous System, Tobacco and Alcohol useSystem, Tobacco and Alcohol use
TobaccoTobacco Crumbled Tobacco Crumbled Tobacco
leavesleaves
Rolled Tobacco leavesRolled Tobacco leaves
Grounded LeavesGrounded Leaves
Can be smoked, Can be smoked, inhaled, “snuff” or inhaled, “snuff” or chewedchewed
Health WarningsHealth Warnings Smoking causes heart disease, Smoking causes heart disease,
emphysema, and may cause lung emphysema, and may cause lung cancercancer
Cigarette smoke contains carbon Cigarette smoke contains carbon monoxidemonoxide
Smoking by pregnant women may Smoking by pregnant women may result in fetal injury, premature birth result in fetal injury, premature birth and low birth weightand low birth weight
Quitting smoking now greatly Quitting smoking now greatly reduces serious risks to your healthreduces serious risks to your health
DiscussionDiscussion Take a look again at the various Take a look again at the various
health warning used on cigarette health warning used on cigarette labels.labels.
Do you feel these are sufficient Do you feel these are sufficient labels? Why or why not?labels? Why or why not?
How might you improve these labels?How might you improve these labels?
How things have changed….How things have changed….
Before 1964…Before 1964… Currently…Currently…
ActivityActivity Together with a partner create a list Together with a partner create a list
of reasons why teens may choose of reasons why teens may choose NOT to smokeNOT to smoke
Then, create a list of reasons why Then, create a list of reasons why teen may choose TO smoketeen may choose TO smoke
Cigarettes and Cigarettes and AdvertisementAdvertisement
Remember what you do now Remember what you do now could affect the rest of your could affect the rest of your
life…life…
Aim: What is nicotine and how does it affect the body?
Do Now: How has the rate of people smoking changed in recent years?
Next week AIDS Awareness
Test next Friday moved to 12/19: Nervous system, Tobacco and Alcohol use
What is Nicotine World’s most widely used drug
No therapeutic application
Very powerful poison
Can be + or neutral: Which one do you think has an easier time being absorbed by the body? Why?
Deadliest drug with an LD of about 60mg
Kills in minutes
If you could absorb all of the nicotine in just two cigars you would die
Factors affecting Nicotine Absorption
Number of and duration of puffs
Volume of smoke taken in
The length of the cigarette
The number of cigarettes smoked in a certain amount of time
Cigarettes Contain an average of
0.5 to 2.0 mg of nicotine
10% of which is inhaled and absorbed
Lungs absorb nicotine faster than IV
Reaches the brain in about 10 seconds
Crosses BBB in 90 seconds
Nicotine and its affect on the Nervous System
Classified as a Stimulant
Increases production of adrenaline and stimulates sympathetic nervous system
Interferes with action of the neurotransmitter Acetylcholine (Ach)
In small doses it acts as an agonist and in high doses as an antagonist another way to say this is it excites the Ach and then inhibits it
What does ACh do? Excite Muscles
Controls Muscles in the lungs
Targets organs of the parasympathetic system
Synaptic Animation
http://www.bishopstopford.com/faculties/science/arthur/synapse.swf
Aim: How does Nicotine affect the Nervous System?
Do Now: What type of drug is nicotine classified as? What part of the nervous system is mainly affected by it?
HW due tomorrow Read pgs 465-469 questions 1-4
Nicotine and its affect on the Nervous System
Classified as a Stimulant
Increases production of adrenaline and stimulates sympathetic nervous system
Interferes with action of the neurotransmitter Acetylcholine (Ach)
In small doses it acts as an agonist and in high doses as an antagonist another way to say this is it excites the Ach and then inhibits it
What does ACh do? Excite Muscles
Controls Muscles in the lungs
Targets organs of the parasympathetic system
Synaptic Animation
http://www.bishopstopford.com/faculties/science/arthur/synapse.swf
Affects of Nicotine on the Body…
Dizziness Nausea Faintness Clammy Skin Vomiting Diarrhea Rush of Adrenaline Increase Blood
Pressure Constriction of Blood
Vessels—cold extremities and lower body temperature
What else is in those Cigarettes?
Carbon Monoxide: The hemoglobin hog!
Tars: The Cilia Killer!
Health Advisory: Low-tar, low nicotine cigarettes DO NOT WORK!
Smokeless Tobacco Cigarettes don’t work either!
Aim: What are the long term effects of smoking?
Do Now: How does nicotine affect AcH receptor sites?
Hand in HW
Aids Awareness week starting Monday
Test on 12/19: Neurons, Alcohol and Smoking
Effects of Tobacco Smoke Heart Disease
Atherosclerosis Stroke
Cancer Leukoplakia
Chronic Lung Disease Bronchitis Emphysema
Warning: Some Slides are
Disturbing
